Category

Published on

07 Jul 2010

Abstract

Various forms of thermal energy are being investigated and utilized as an
alternative energy source. Thermoelectric devices are one such method that
has the ability to provide thermal to electrical energy conversion, or be
used as a cooling mechanism when power is input. The applications range
from waste heat recycling=94to local electronic cooling needs. The
performance of these devices largely depends on the films that provide
thermoelectric effects. The thermoelectric figure of merit, ZT, is a
standard measure of material efficiency and depends on electrical
conductivity, Seebeck coefficient, and the thermal conductivity.

The investigation of thermal transport in thin films provides some insight
and methods to reduce thermal conductivity in efforts to increase ZT. The
presence of nanostructures in the films affects the transport of heat within
the film and thus can be used to manipulate the thermal properties. This
talk discusses the performance of nanostructured thin films as a potential
material for thermoelectric energy conversion applications, as well as the
material composition variations that can provide guidelines for finding low
values of thermal conductivity.

Bio

Suzanne L. Singer received her mechanical engineering M.S. and Ph.D. in 2009
from the University of California at Berkeley, and her B.S. from the
University of Arizona. Suzanne was a Ford dissertation fellow and a
recipient of the National Science Foundation (NSF) graduate research
fellowship. She also was a graduate student intern at Sandia National
Laboratories during 2008-2009 working with the Tribal Energy Program, and
the Photovoltaic Systems Evaluation Laboratory.

Cite this work

Researchers should cite this work as follows:

Suzanne Singer (2010), "Thermal Transport in Nanostructured Materials: Working to Improve Efficiency in the Field of Thermoelectrics," http://nanohub.org/resources/9213.